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All Journal Aquacoastmarine
Dewi, Rita Rosmala
Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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KONDISI DAN UPAYA PELESTARIAN HUTAN MANGROVE YANG BERBASIS PENDEKATAN MASYARAKAT DI KECAMATAN PERCUT SEI TUAN KABUPATEN DELI SERDANG SUMATERA UTARA Putri, Dizza Ayu; Djayus, Yunasfi; Dewi, Rita Rosmala
AQUACOASTMARINE Vol 6, No 2 (2018): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

Ecosystem of mangroves forest in the District of Percut Sei Tuan has a number of conversion that effected by aquaculture activities namely shrimp farming, then plantation activities such as palm oil plantation. Furthermore, the most utilization of mangrove that is done by society such as wood fuel and charcoal production. It causes permanent mangrove destruction and reduction in mangrove area which is lead to decrease in ecological function and benefit of mangrove ecosystem. The purpose of this study is to determine the condition and the dominant species of mangrove, hence how the coastal society effort in dealing with mangrove forest destruction. This research was conducted in May - June 2017. The research was conducted by survey method and purposive sampling. The result showed that mangrove condition in Percut Sei Tuan Subdistrict of Deli Serdang Regency was in rare state. And also found the most widely Plants of Nipah up to 2.000 Tree/ha. Condition of water parameters (temperature, salinity, pH) fulfill the quality standard of Decree of LH No. 51 of 2004. The value of mangrove landform changes as much as 64% which is used as palm oil plantation and 36% used as pond area and the utilization of mangrove as fishing (fish, shrimp, crab, et all) and charcoal fuel which resulted in decreasing of mangrove land in Percut Sei Tuan Subdistrict of Deli Serdang Regency of North Sumatera.Keywords : Mangrove, Transformation area, Sub-district Percut Sei Tuan, Deli Serdang district
DAYA SERAP POHON MANGROVE Avicennia marina TERHADAP LOGAM BERAT TIMBAL (Pb) DI KAWASAN MANGROVE KAMPUNG NIPAH DESA SEI NAGALAWAN SERDANG BEDAGAI SUMATERA UTARA Manik, Maryenta; Djayus, Yunasfi; Dewi, Rita Rosmala
AQUACOASTMARINE Vol 5, No 3 (2017): AQUACOASTMARINE
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Pertanian Universitas Sumatera Utara

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Abstract

The coastal area of the village of Sei Nagalawan is an area that has an excellent mangrove forest potentials, such as shrimp and crab farming, agriculture, ship workshop as well as a small boat passage to transport tourists visiting the region. Over utilization of mangrove ecosystems was predicted causes waters contamination by heavy metals. The purpose of this research is to know the ability of A. marina in accumulating heavy metal and to analyze the content of heavy metal Plumbum (Pb) on roots, barks, and leaves of mangrove A. marina. This research was conducted in Nipah’s Mangrove, Sei Nagalawan Village, Serdang Bedagai North Sumatera. The analysis of using heavy metals is conducted in research centre and industrial standardization, Medan by using the Atomic Absorption Spectroscopy method. The result of this research showed that the highest content of heavy metal in the roots, barks and leaves are 0,05 mg/kg , 0,06 mg/kg and 0,008 mg/kg, respectively. Therefore the ability of A. marina in accumulating heavy metal Pb is classified very low.Keyword: : Avicennia marina, AAS, Heavy Metal, Plumbum (Pb), Kampung Nipah